Battery charger



FIG. 1 is a perspective view of the battery charger with its covers closed;

FIG. 2 is a top, plan view of the battery charger shown in FIG. 1;

FIG. 3 is a rear view of the battery charger shown in FIG. 1;

FIG. 4 is a perspective view of the battery charger of FIG. 1, illustrated with its covers open;

FIG. 5 is a top, plan view of the battery charger shown in FIG. 4; and

FIG. 6 is a rear view of the battery charger shown in FIG. 4. 

The ornamental design for the battery charger, as shown and described. 